void UDestructibleComponent::SetChunkVisible( int32 ChunkIndex, bool bVisible )
{
#if WITH_APEX
// Bone 0 is a dummy root bone
const int32 BoneIndex = ChunkIdxToBoneIdx(ChunkIndex);
if( bVisible )
{
UnHideBone(BoneIndex);
if (NULL != ApexDestructibleActor)
{
physx::PxShape** PShapes;
const physx::PxU32 PShapeCount = ApexDestructibleActor->getChunkPhysXShapes(PShapes, ChunkIndex);
if (PShapeCount > 0)
{
const physx::PxMat44 ChunkPoseRT = ApexDestructibleActor->getChunkPose(ChunkIndex); // Unscaled
const physx::PxTransform Transform(ChunkPoseRT);
SetChunkWorldRT(ChunkIndex, P2UQuat(Transform.q), P2UVector(Transform.p));
}
}
}
else
{
HideBone(BoneIndex, PBO_None);
}
// Mark the transform as dirty, so the bounds are updated and sent to the render thread
MarkRenderTransformDirty();
// New bone positions need to be sent to render thread
MarkRenderDynamicDataDirty();
#endif
}
void UDestructibleComponent::SetChunksWorldTM(const TArray<FUpdateChunksInfo>& UpdateInfos)
{
const FQuat InvRotation = ComponentToWorld.GetRotation().Inverse();
for (const FUpdateChunksInfo& UpdateInfo : UpdateInfos)
{
// Bone 0 is a dummy root bone
const int32 BoneIndex = ChunkIdxToBoneIdx(UpdateInfo.ChunkIndex);
const FVector WorldTranslation = UpdateInfo.WorldTM.GetLocation();
const FQuat WorldRotation = UpdateInfo.WorldTM.GetRotation();
const FQuat BoneRotation = InvRotation*WorldRotation;
const FVector BoneTranslation = InvRotation.RotateVector(WorldTranslation - ComponentToWorld.GetTranslation()) / ComponentToWorld.GetScale3D();
GetEditableSpaceBases()[BoneIndex] = FTransform(BoneRotation, BoneTranslation);
}
// Mark the transform as dirty, so the bounds are updated and sent to the render thread
MarkRenderTransformDirty();
// New bone positions need to be sent to render thread
MarkRenderDynamicDataDirty();
//Update bone visibilty and flip the editable space base buffer
FlipEditableSpaceBases();
}
void UDestructibleComponent::SetCollisionResponseForActor(PxRigidDynamic* Actor, int32 ChunkIdx, const FCollisionResponseContainer* ResponseOverride /*= NULL*/)
{
#if WITH_APEX
if (ApexDestructibleActor == NULL)
{
return;
}
// Get collision channel and response
PxFilterData PQueryFilterData, PSimFilterData;
uint8 MoveChannel = GetCollisionObjectType();
if(IsCollisionEnabled())
{
UDestructibleMesh* TheDestructibleMesh = GetDestructibleMesh();
AActor* Owner = GetOwner();
bool bLargeChunk = IsChunkLarge(ChunkIdx);
const FCollisionResponseContainer& UseResponse = ResponseOverride == NULL ? (bLargeChunk ? LargeChunkCollisionResponse.GetResponseContainer() : SmallChunkCollisionResponse.GetResponseContainer()) : *ResponseOverride;
physx::PxU32 SupportDepth = TheDestructibleMesh->ApexDestructibleAsset->getChunkDepth(ChunkIdx);
const bool bEnableImpactDamage = IsImpactDamageEnabled(TheDestructibleMesh, SupportDepth);
CreateShapeFilterData(MoveChannel, GetUniqueID(), UseResponse, 0, ChunkIdxToBoneIdx(ChunkIdx), PQueryFilterData, PSimFilterData, BodyInstance.bUseCCD, bEnableImpactDamage, false);
PQueryFilterData.word3 |= EPDF_SimpleCollision | EPDF_ComplexCollision;
SCOPED_SCENE_WRITE_LOCK(Actor->getScene());
TArray<PxShape*> Shapes;
Shapes.AddUninitialized(Actor->getNbShapes());
int ShapeCount = Actor->getShapes(Shapes.GetData(), Shapes.Num());
for (int32 i=0; i < ShapeCount; ++i)
{
PxShape* Shape = Shapes[i];
Shape->setQueryFilterData(PQueryFilterData);
Shape->setSimulationFilterData(PSimFilterData);
Shape->setFlag(PxShapeFlag::eSCENE_QUERY_SHAPE, true);
Shape->setFlag(PxShapeFlag::eSIMULATION_SHAPE, true);
Shape->setFlag(PxShapeFlag::eVISUALIZATION, true);
}
}
#endif
}
void UDestructibleComponent::SetChunkWorldRT( int32 ChunkIndex, const FQuat& WorldRotation, const FVector& WorldTranslation )
{
// Bone 0 is a dummy root bone
const int32 BoneIndex = ChunkIdxToBoneIdx(ChunkIndex);
// Mark the transform as dirty, so the bounds are updated and sent to the render thread
MarkRenderTransformDirty();
#if 0
// Scale is already applied to the ComponentToWorld transform, and is carried into the bones _locally_.
// So there is no need to set scale in the bone local transforms
const FTransform WorldRT(WorldRotation, WorldTranslation, ComponentToWorld.GetScale3D());
SpaceBases(BoneIndex) = WorldRT*ComponentToWorld.Inverse();
#elif 1
// More optimal form of the above
const FQuat BoneRotation = ComponentToWorld.GetRotation().Inverse()*WorldRotation;
const FVector BoneTranslation = ComponentToWorld.GetRotation().Inverse().RotateVector(WorldTranslation - ComponentToWorld.GetTranslation())/ComponentToWorld.GetScale3D();
SpaceBases[BoneIndex] = FTransform(BoneRotation, BoneTranslation);
#endif
}
void UDestructibleComponent::SetCollisionResponseForShape(PxShape* Shape, int32 ChunkIdx)
{
// Get collision channel and response
PxFilterData PQueryFilterData, PSimFilterData;
uint8 MoveChannel = GetCollisionObjectType();
if (IsCollisionEnabled())
{
AActor* Owner = GetOwner();
bool bLargeChunk = IsChunkLarge(ChunkIdx);
const FCollisionResponse& ColResponse = bLargeChunk ? LargeChunkCollisionResponse : SmallChunkCollisionResponse;
//TODO: we currently assume chunks will not have impact damage as it's very expensive. Should look into exposing this a bit more
CreateShapeFilterData(MoveChannel, (Owner ? Owner->GetUniqueID() : 0), ColResponse.GetResponseContainer(), 0, ChunkIdxToBoneIdx(ChunkIdx), PQueryFilterData, PSimFilterData, BodyInstance.bUseCCD, false, false);
PQueryFilterData.word3 |= EPDF_SimpleCollision | EPDF_ComplexCollision;
SCOPED_SCENE_WRITE_LOCK(Shape->getActor()->getScene());
Shape->setQueryFilterData(PQueryFilterData);
Shape->setSimulationFilterData(PSimFilterData);
Shape->setFlag(PxShapeFlag::eSCENE_QUERY_SHAPE, true);
Shape->setFlag(PxShapeFlag::eSIMULATION_SHAPE, true);
Shape->setFlag(PxShapeFlag::eVISUALIZATION, true);
}
}
void UDestructibleComponent::SetChunkVisible( int32 ChunkIndex, bool bVisible )
{
// Bone 0 is a dummy root bone
const int32 BoneIndex = ChunkIdxToBoneIdx(ChunkIndex);
bool bClearActorFromChunkInfo = false;
if( bVisible )
{
UnHideBone(BoneIndex);
#if WITH_APEX
PxRigidDynamic* PActor = ApexDestructibleActor != NULL ? ApexDestructibleActor->getChunkPhysXActor(ChunkIndex) : NULL;
UDestructibleMesh* DMesh = GetDestructibleMesh();
if (PActor != NULL)
{
// If actor has already a chunk info and userdata, we just make sure it is valid and update the
// physx actor if needed. We do NOT do this for FormExtended structures, as in this case, the shapes/actors
// are moved to the 1st structure object internally by APEX.
if(PActor->userData != NULL && !DMesh->DefaultDestructibleParameters.Flags.bFormExtendedStructures)
{
FDestructibleChunkInfo* CI = FPhysxUserData::Get<FDestructibleChunkInfo>(PActor->userData);
checkf(CI, TEXT("If a chunk actor has user data and it is not a DestructibleChunkInfo, something is messed up."));
//check(CI->OwningComponent == this);
if (CI->ChunkIndex != ChunkIndex)
{
// grab the old actor and clear its user data, as we steal the ChunkInfo here
if (CI->Actor && CI->Actor != PActor)
{
CI->Actor->userData = NULL;
}
CI->ChunkIndex = ChunkIndex;
}
CI->OwningComponent = this;
CI->Actor = PActor;
}
else if (PActor->userData == NULL)
{
// Setup the user data to have a proper chunk - actor mapping
int32 InfoIndex = ChunkInfos.AddUninitialized();
FDestructibleChunkInfo* CI = &ChunkInfos[InfoIndex];
CI->Index = InfoIndex;
CI->ChunkIndex = ChunkIndex;
CI->OwningComponent = this;
CI->Actor = PActor;
int32 UserDataIdx = PhysxChunkUserData.Add(FPhysxUserData(CI));
check(InfoIndex == UserDataIdx);
PActor->userData = &PhysxChunkUserData[UserDataIdx];
// Set collision response to non-root chunks
if (GetDestructibleMesh()->ApexDestructibleAsset->getChunkParentIndex(ChunkIndex) >= 0)
{
SetCollisionResponseForActor(ChunkCollisionResponse, PActor, ChunkIndex);
}
}
}
else
{
bClearActorFromChunkInfo = true;
}
#endif // WITH_APEX
}
else
{
HideBone(BoneIndex, PBO_None);
bClearActorFromChunkInfo = true;
}
#if WITH_APEX
if (bClearActorFromChunkInfo)
{
// Make sure we clear the physx actor pointer of the chunk info as it might (and probably will) be
// invalid from now on
for (int32 i=0; i < ChunkInfos.Num(); ++i)
{
if (ChunkInfos[i].ChunkIndex == ChunkIndex)
{
ChunkInfos[i].Actor = NULL;
break;
}
}
}
#endif // WITH_APEX
// Mark the transform as dirty, so the bounds are updated and sent to the render thread
MarkRenderTransformDirty();
// New bone positions need to be sent to render thread
MarkRenderDynamicDataDirty();
}
void UDestructibleComponent::SetCollisionResponseForActor(const FCollisionResponse& ColResponse, PxRigidDynamic* Actor, int32 ChunkIdx)
{
// Get collision channel and response
PxFilterData PQueryFilterData, PSimFilterData;
uint8 MoveChannel = GetCollisionObjectType();
if(IsCollisionEnabled())
{
AActor* Owner = GetOwner();
CreateShapeFilterData(MoveChannel, (Owner ? Owner->GetUniqueID() : 0), ColResponse.GetResponseContainer(), 0, ChunkIdxToBoneIdx(ChunkIdx), PQueryFilterData, PSimFilterData, BodyInstance.bUseCCD, BodyInstance.bNotifyRigidBodyCollision, false);
PQueryFilterData.word3 |= EPDF_SimpleCollision | EPDF_ComplexCollision;
SCOPED_SCENE_WRITE_LOCK(Actor->getScene());
TArray<PxShape*> Shapes;
Shapes.AddUninitialized(Actor->getNbShapes());
int ShapeCount = Actor->getShapes(Shapes.GetTypedData(), Shapes.Num());
for (int32 i=0; i < ShapeCount; ++i)
{
PxShape* Shape = Shapes[i];
Shape->setQueryFilterData(PQueryFilterData);
Shape->setSimulationFilterData(PSimFilterData);
Shape->setFlag(PxShapeFlag::eSCENE_QUERY_SHAPE, true);
Shape->setFlag(PxShapeFlag::eSIMULATION_SHAPE, true);
Shape->setFlag(PxShapeFlag::eVISUALIZATION, true);
}
}
}
